/*
 *    Copyright 2008-2009 The Digester Tools Team
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package com.digestertools.annotations;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import org.apache.commons.digester.CallParamRule;

import com.digestertools.annotations.handlers.AttributeCallParamHandler;

/**
 * 
 * @author Simone Tripodi
 * @version $Id: AttributeCallParam.java 357 2009-12-16 20:00:36Z simone.tripodi $
 */
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.PARAMETER)
@DigesterRule(
        reflectsRule = CallParamRule.class,
        handledBy = AttributeCallParamHandler.class
)
public @interface AttributeCallParam {

    String attribute();

    String pattern() default "";

    /**
     * Defines several @CallParam annotations on the same element 
     *
     * @see (@link CallParam}
     */
    @Documented
    @Retention(RetentionPolicy.RUNTIME)
    @Target(ElementType.TYPE)
    @interface List { 
        AttributeCallParam[] value();
    }

}
